Auxiliary hoisting device for offshore pipeline construction

Abstract

The invention belongs to the technical field of auxiliary hoisting devices for construction, in particular to an auxiliary hoisting device for offshore pipeline construction. The auxiliary hoisting device for offshore pipeline construction comprises a hoisting column, wherein a column base is arranged at the bottom end of the hoisting column, a fixed lazy arm is arranged at the top end of the hoisting column, an adjustable lazy arm is arranged on the side wall of the hoisting column, a lazy arm fixing bolt is arranged in the adjustable lazy arm, a direction adjusting ring plate is arranged onthe outer surface wall of the hoisting column, and a rope positioning block is arranged at the top end of the fixed lazy arm. By matching the hoisting column, the column base, the fixed lazy arm, theadjustable lazy arm, the lazy arm fixing bolt, the direction adjusting ring plate, the rope positioning block and a fixed bolt hole, the device body is simple in structure, reasonable in design, convenient to operate and solid and durable, can be used circularly and not only improves the construction level of offshore trestle pipeline construction greatly, but also can solve the problem that it ishard to mount the offshore pipeline when there is no hoisting operation ship to support construction effectively.

Description

technical field [0001] The invention relates to the technical field of construction auxiliary hoisting devices, in particular to an auxiliary hoisting device for offshore pipeline construction. Background technique [0002] When the offshore oil platform is installed at sea, there are a large number of outboard pipelines on the trestle connecting the new platform and the old platform, which has caused great difficulties in the construction of offshore pipelines. In previous projects, it took about 15 days to complete the installation of the pipeline at the joint by using a large offshore hoisting vessel. The hoisting vessel was calculated at a daily cost of 300,000 yuan, and the trestle pipeline connection required a huge cost of 4.5 million yuan, which led to the construction of the project. The cost has risen sharply; at the same time, it is not conducive to the company's energy saving and emission reduction, cost reduction and efficiency increase, and the implementation o...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the invention provides an auxiliary hoisting device for offshore pipeline construction, which solves the problem of how to complete the installation of the outboard pipeline of the trestle with high efficiency and high quality without the support of a large-scale hoisting ship. Convenience, economy and safety, short working time for installation and adjustment, etc., can be recycled, and have a comprehensive breakthrough in the effects of ...

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